change the login button in navigation bar to logout button after completing login form

So, I created a nav bar in my website design in Figma, as a nav bar is a common component. It is included on every page, and each page have two identical copies with one containing transparent nav bar and other containing solid nav bar both copies are connected with each other with mouse enter and leave interaction and now I connected every page login button from nav bar including their copies to log in form overlay menu which on clicking open login menu and as u fill login menu from start with filling no. then filling otp and submitting otp now what I want is that after clicking submitting button in otp filling state it should change the nav bar to log out nav bar